【课件】Unit+1+Reading+and+Thinking+课件人教版（2019）选择性必修第二册

Reading&ThinkingJohnSnowDefeats“KingCholeara”Whatdiseasecanyouthinkofwhenyoulookatthesepictures?COVID-19Besidescoronavirus（冠状病毒）,whatotherkindsofepidemics（流行病）doyouknow?Bird-flumalariaplagueEbolaSmallpoxCholera1.Wherecanyoufindthepassage?A.asciencebook B.novelC.atravelguide D.newspaper2.Atlast,“KingCholera”wascontrolledby___.A.usingmedicineinhospitalB.drivingpatientsoutofthecountryC.dealingwiththepollutedwaterD.gettingridofallkindsofpollution3.What’sthewriter’spurposeinwritingthepassage?A.TotellreadershowJohndefeatedcholeraandhisinfluenceonscientificresearch.B.TotellreadersJohn’scontributionstoscientificresearch.C.Totellreaderstheprocessofdefeatingcholera.D.Totellreadershowseverethecholerais.Choosethebestanswer.ACAReadthetitleandpictureandpredict.JohnSnowDefeats“KingCholera”Whatdoes“King”implyinthetitle?ThenameofcholeraThecausesofcholeraCholeraspreadfastCholeraispowerfulandhardtocureWho?How?What?Thetextismainlyabout____________and______hedefeatedkingcholera.howJohnSnowParagraphsKeywordstoconcludemainidea12-345What’sthestructureofthispassage?BackgroundinformationResearchprocessThetruthResultsandsignificanceparagraph1Cholerausedtobeoneof

themostfeareddiseasesintheworld,untilaBritishdoctor,JohnSnow,showedhowitcouldbeovercome.Thisillnesscausesseverediarrhoea,dehydration,andevendeath.Intheearly19thcentury,whenanoutbreakofcholerahitEurope,millionsofpeoplediedfromthedisease.Asayoungdoctor,JohnSnowbecamefrustratedbecausenooneknewhowtopreventortreatcholera.Intime,herosetobecomeafamousdoctor,andevenattendedtoQueenVictoriawhenshegavebirth.However,heneverlosthisdesiretodestroycholeraonceandforall.BackgroundinformationJohnSnowcholeraWho?A________________________doctorwhoevenattended___________________whenshegavebirth.What?Hehadadesireto________________onceandforall.British、youngandfamous

destroycholeraWhat?Itusedtobeoneof_________________________________________becauseitcauses______________________________________________.When?_______________________________________________.Where?______________________________________________.Whatconsequence?

themostfeareddiseasesintheworldseverediarrhoea,dehydrationandevendeathIntheearly19thcenturyEuropetoQueenVictoriaPara.1BackgroundinformationMillionsofpeoplediedReadtheparagraph2andfindtwocontradictorytheoriesTwoTheoriesThefirsttheory

causedbybad______causedby

__________________.Heneededproof.Thesecondtheory

Snowsubscribedtothesecondtheory.airgermsinfoodorwaterparagraph2Ingeneral,

doctorsinthosedayshadtwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywasthatbadaircausedthedisease.Anotherwasthatcholera

wascausedby

aninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.Itwascorrect,buthestillneededproof.Consequently,whenanoutbreakofcholerahitLondonin1854,Snowbegantoinvestigate.Hediscoveredthatintwoparticularstreetsthecholeraoutbreakwasso

severe

that

morethan500peoplediedintendays.Hewasdeterminedto

findoutwhy.WhatdidJohnSnowinvestigatewhenanotheroutbreakhitLondonin1854?Snowwasdeterminedtoinvestigate.Whichhouseshadmorethan4deathsinBroadStreet?Whichhouseshadnodeath?Why?PublichouseClue:freebeerfrompublichouseThepumpwatercarriedcholeragermsWhatmethoddidheuse?paragraph3Snowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreet,and8and9CambridgeStreet)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeer,andsohadnotdrunkthewaterfromthepump.Snowsuspectedthatthewaterpumpwastoblame.What’smore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemedthatwomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.Asaresultofthisevidence,JohnSnowwasabletoannoucethatthepumpwatercarriedcholeragerms.Accordingly,hehadthehandleofthepumpremovedsothatitcouldnotbeused.Throughthisintervention,thediseasewasstoppedinitstracks.Snowcollectedinformationandofferedsolutions.ReadPara2-3againforscientificstagesA:Itwasbelievedthatcholerawascausedbybad_____orgermsin_____________.B:Snowwasdeterminedtofindout_____.E:Manydeathsoccurrednearthe__________inBroadStreet.Somepeople________drunkthewaterfromthepump,andlived.F:AwomanandherdaughterdiedinanotherpartofLondonafter____________________

_.

H:The______ofthepumpwasremoved.C:Snow

theplaceswherethepeoplewho____hadlived.D:Housenumber16,37,38,and40;20and21BroadStreet;8and9CambridgeStreet.G:Thepumpwatercarried________________.airwhymarkedonamapdiedhandlecholeragermsmovingawayfromBroadStreetwaterpumphadn’tfoodorwaterThenmatchthefollowingheaderswiththelettersfromthechartabove.WriteA-Hintheblanks.1.analysetheresults____2.askaquestion____3.drawaconclusion____4.collectdata____5.findaproblem_____6.findsupportingevidence____7.thinkofamethod_____8.offersolutions_____EBGDAFCHparagraph4ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.

WhatwasthetruththatSnowhadrevealed?WatercompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Snowfoundthetruthofcholera.paragraph5ThroughSnow’stirelessefforts,watercompaniesbegantosellcleanwaterandthethreatofcholeraaroundtheworldsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientistsstudydiseases.Forthisreason,Snowisconsideredthefatherofmodernepidemiology.JohnSnowisconsideredthefatherofmodernepi